Bothriochloa torreyana (Steudel) Scrivanti & Antón. Common name: Silver Bluestem. Phenology: May-Nov. Habitat: Dry, sandy prairies and other grasslands, eastwards in road medians and other disturbed areas. Distribution: MO and NV south to w. LA, TX, CA, and Mexico; also Argentina; adventive elsewhere (the exact boundaries of the native distribution obscure). Reported for SC (Kartesz 1999), ne. GA (Jones & Coile 1988; Allred & Gould 1983), e. TN, and c. TN (Chester et al. 1993), s. MO (Thomas 2017), in some cases as B. saccharoides var. torreyana.

Origin/Endemic status: Native

Taxonomy Comments: The morphological distinctions and geography provide a strong basis for treating this taxon at specific rank, a case argued for and with additional chemical evidence by Scrivanti & Antón (2011).

Synonymy ⓘ: = POWO, Scrivanti & Antón (2011); = Amphilophis torreyanus (Steud.) Nash — S13; = Bothriochloa laguroides (DC.) Herter ssp. torreyana (Steud.) Allred & Gould — Ar, ETx1, FlGr, FNA25, K4, Mo1, NcTx, Tn, WH3, Allred & Gould (1983), Vega (2000); = Bothriochloa saccharoides (Sw.) Rydb. var. torreyana (Steud.) Gould — Tx; = n/a — C, RAB; < Andropogon saccharoides Sw. — F, misapplied; < Bothriochloa laguroides (DC.) Herter — Il, Mex; > Bothriochloa laguroides (DC.) Herter ssp. torreyana (Steud.) Allred & Gould — NS; > Bothriochloa saccharoides (Sw.) Rydb. — NS, misapplied; Andropogon torreyanus Steudel. Basionym: Andropogon torreyanus Steud. 1840

Links to other floras: = Bothriochloa laguroides ssp. torreyana - FNA25

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Heliophily ⓘ: 9